Sioux Falls police are investigating an armed robbery at the BP Shop & Cart at 6th Street and Cleveland Avenue.
They say just before 5:30 a.m. a man walked into the store, showed a gun and demanded money.
The store's owner says the man left with a little cash but no one was injured.
The suspect is described as having dark skin, is 5' 11" to 6 feet tall, is about 20-years-old and has dark hair. He was wearing a blue hooded sweatshirt and blue jeans and had a white piece of cloth covering the lower half of his face.
Anyone with information should call police or Crime Stoppers at 367-7007.